flexiDOCK MB524SP-B
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flexiDOCK brings the quality and ease-of-use of a professional solution to the consumer market. With support for up to four 2.5" hard drives or SSDs, the MB524SP-B needs only a single 5.25" bay. Our new tray-less design has no doors, allowing for drives to be switched out in seconds. This is an improvement to many traditional hard drive docking stations that leave the drive sticking out and looking cluttered. The easy to press ejection button offers rapid drive ejection in a smooth, quick action. Individual power buttons for each bay allow drives to be turned on and off in an instant. The metal body with an air ventilating design works together with the adjustable 40mm fan to provide quiet operation while keeping your drives at optimal temperature.


The flexiDOCK MB524SP-B is the perfect solution for anyone who needs quick access to data from multiple hard drives or SSDs; Media professionals editing and moving large files, data recovery specialists constantly swapping drives, and IT technicians maintaining regular backups of critical data.

The World’s First Professional Docking in a 5.25” Bay

flexiDOCK brings the convenience of a HDD docking station, with the performance of a HDD mobile rack. The MB524SP-B turns your unused 5.25” bay into a quad bay SSD / HDD dock to easily use multiple drives together. flexiDOCK installs into your system in minutes with only a few screws, and is ready to operate. Once installed, the flexiDOCK MB524SP-B supports up to 4x 2.5” SAS/SATA HDD/SSD drives from 5mm to 9.5mm in height. It also supports SATA 6Gbps transfer speeds and hot-swap functionality, using your drives to their full extent has never been easier.


Different by Design


When working with multiple drives, constantly swapping between drive caddies / trays can slow your workflow to a crawl. That’s why we’ve taken trays and doors completely out of the equation with our new flexiDOCK MB524SP-B. Our new system allows drives to be inserted in seconds and sit flush with the computer's front panel, reducing clutter and protecting your drives from environmental hazards.


When a drive is inserted into flexiDOCK, an eject button is revealed along with a LED drive activity light. To eject your drive, simply press the eject button back in and your drive will pop out. You can also turn off each drive’s power anytime by pressing the tamper-proof power button.


Profession Specific

With the new design that allows users to quickly and easily change out SSDs or drives. Video professionals and hobbyists use this feature to quickly edit their videos, when large projects call for multiple drives. Gamers enjoy the ability to easily add more SSD storage to their system, without having to take apart their computer and fumble with wires. IT professionals and computer repair technicians use this feature to quickly test multiple drives at the same time. System builders use flexiDOCK to keep different operating systems physically separate, increasing performance and security in their applications.


Built for the Features

We’ve designed flexiDOCK to handle professional applications, while maintaining a consumer-friendly price point. The included 40mm cooling fan's speed is easily adjustable, with a handy fan speed control on the front of the unit. This allows you to lower the fan speed during normal operation and increase the speed under heavy use, reducing noise output and keeping drives cool when they need it.

Individual drive power buttons can shut drives down safely, saving power and increasing security. All four drives can be powered from a single 15 pin power connector, which reduces the clutter usually caused by multiple drives. flexiDOCK also supports latching power and data cables, ensuring drives do not accidentally disconnect during operation. Hybrid of full metal chassis with strong ABS plastic internal components are built to last and provide the best protection along with a full 3-year warranty against all defects.


Optional EZConvert MB703M2P-B for M.2 SATA SSD


If you are looking to use a M.2 SATA SSD with the flexiDOCK MB524SP-B, pair it with our EZConvert MB703M2P-B M.2 SSD to 2.5” form factor adapter featuring tool-less adjustable locker to secure your M.2 in place. To learn more about EZConvert MB703M2P-B please click HERE.

Suggested Applications
Data backup, drive cloning, audio & video editing, digital forensics, drive recovery, mobile computers, datacenter / rack mount systems, and any application where hot-swap is required.
Key Features

* Supports docking up to 4 x 2.5” SAS/SATA HDD/SSD with SATA hot-swap functionality (5mm – 9.5mm)
* Supports SATA 3.0 6Gbps or SAS 3.0 12Gbps (single channel)
* Fits any external 5.25” bay
* Full metal chassis with industrial ABS plastic for full protection
* Completely tray-less design accepts bare drives without screws or holders
* Drive door-less design for quick hot-swapping
* Safety enhanced drive ejection button to prevent accidental drive ejection
* Large individual drive eject buttons
* Individual tamper-proof drive power button with cool blue drive activity LED
* High performance 40mm cooling fan with an easily accessible fan speed control
* Powered all four drives from a single 15 pin power connector
* Supports SATA data and power cables with locking latch design
* Flush drive insertion design fully protects drives from possible environmental damage
* Artistically designed ventilation slots for maximum passive cooling
* Backed by a full 3-year manufacturer warranty against all defects

Purchase Links


3 Years Warranty
Product Name :
Quad Bay 2.5" SAS/SATA HDD/SSD Docking for External 5.25" Bay
Model Number :
Color :
Support Drive Size :
2.5" SSD / HDD
Compatible Drive Type :
SATA / Single channel SAS (SAS host required)
Number of Drives :
Max Drive Height :
Drive Bay :
1 x 5.25" drive bay
Host Interface :
4 x SATA 7pin
Power Input :
1 x SATA 15pin power
Transfer Rate :
SATA 3.0 up to 6Gbps / SAS 3.0 up to 12Gbps 
Support HDD Capacity :
No Limitation
Drive Cooling :
1 x 40mm fan
Structure / Material :
Metal Body with parital plastic
Support Hot-Swap :
Product Dimension (L x W x H) :
139 x 146 x 41.3 mm
Product Net Weight :
Package Gross Weight :
Drive Activity LED Indication :
Drive power: solid blue; HDD access: flashing blue
Package contents :
1 - Device, 1 - user manual, 10 - screw
Product Name :
4 x 2.5" SSD Dock Trayless Hot-Swap SATA / SAS Mobile Rack for Ext 5.25" Bay
SATA Connector Insertion Rate :
Humidity :
5%~65% RH
Operating Temperature :
0°C to 60°C (32°F to 140°F)
Storage Temperature :
-35°C to 70°C (-31°F to 158°F)
Compliance :
Warranty :
3 years


Purchase Links
Product Reviews
Published on June 08, 2020


Icy Dock flexiDock 4-Bay Hot-Swappable Hard-Drive System Review


"What's impressive is that you only need 1 power connection to power your 4 drives! I choose to leave the fan on. A 40 mm fan doesn't make as much noise as you'd think, though for longevity you should keep the setting in the low to medium-low range depending on hard-drive RPMs....."


Read full review: https://proclockers.com/review/icydock-flexidock-4-bay-hot-swappable-hard-drive-system-review/

Published on March 21, 2019


Icy Dock flexiDock MB524SP-B Review - 4x 2.5" SATA, 5.25 Bay



"Nearly every system I use to test SSDs and HDDs has an Icy Dock tool-less quick access bay installed. When the company announces new products, I pay attention. There are several companies offering similar products, but Icy Dock is the only company that has consistently provided me with trouble free solutions that don't degrade performance...."


Read full review: https://www.tweaktown.com/reviews/8940/icy-dock-flexidock-mb524sp-review-4x-2-5-sata-25-bay/index.html

Published on Oct 9, 2018

By TuxDigital

Multibooting Made Easy with the FlexiDOCK by ICY DOCK (MB524SP-B) | Product Review


This is a product review for the FlexiDOCK from ICY DOCK. The flexiDOCK MB524SP-B is a device that makes Multi-Booting very easy without having to deal with Bootloaders or Partitioning and so on. In this video, I discuss the Pros and Cons of this product as well as provide a demonstration of the multi-booting features of the flexiDOCK.


Published on Aug 4, 2017


Multi Booting 4 Operating Systems with the ICY DOCK flexiDOCK MB524SP-B 5.25" Drive Bay


You can multi boot several Operating Software using Boot Managers, but in this video we are using a Quad 2.5" drive bay device from Icy Dock. It is the flexiDOCK MB524SP-B, fits into a 5.25" drive bay and you can insert 4 2.5" drives. In this video we are taking a look at the unit, what's in the box, I put together a computer to showcase how you select between different operating systems and at the end my thoughts and recommendations.



Published on June 26th, 2017


Icy Dock flexiDOCK MB524SP-B Review Killer IT Service Desk Hot Swap Bay



Icy Dock products are well known for unique solutions for adding flexible expansion bays to workstations and SMB servers. We have reviewed many of Icy Docks products over time here at STH, most of which are drive bay solutions designed to expand capacity and add features to your cases. Today we have another product from Icy Dock to take a look at, the flexiDock MB524SP-B 4x 2.5” SSD Dock Trayless Hot-Swap SATA Mobile Rack for Ext 5.25″ Bay. The flexiDock is truly an innovative design as it does not require drive trays nor drive doors and latches. If you want the easiest to use 2.5″ bay on the market for swapping out 2.5" hard drives or SSDs, this may well be it..






Frequent Asked Questions

Q: The mounting screws for the device seem to be too short to secure the device onto my system, what should I do?

A: For computer cases that have a thick metal sheet, the included mounting screws (M3*2.5L) may not fully secure the device. Please use longer screws (M3*4L) to secure the device or contact us at tech@icydock.com for replacement screws.

Q: My 2.5" drive is having difficulty ejecting with the device, why is that?

A: Having difficulty ejecting your 2.5” drive can be caused by a few major factors. Please be sure you are using no larger than 9.5mm drive in height. There are around 3% of 2.5" drives that may have difficulty when ejecting the drive due to different drive width dimensions from various manufacturers. If the problem persists and think your unit may be at fault, please contact tech@icydock.com, so we can resolve the issue as soon as possible.

Q:  Can I replace the cooling fan attached to the device? Will doing that void the warranty?

A:The cooling fan we used has been thoroughly tested with the drive enclosure to ensure it functions properly and supports the fan speed control (for select models). Therefore, we suggest our customers keep the original fan for the best result. However, we understand the stock fan may not be suitable for all the applications, so we elected to honor the warranty when 3rd party fan is using. The warranty may void if the 3rd party fan causes electrical damage to the device, though.

Q:  Which specification should I check before buying the 3rd party cooling fan?

A:The following information is the fan specification requirement and compatible fan models for MB524SP-B


Fan Dimension (LxWxH) 40 x 40 x 10mm 40 x 40 x 20mm 
Connector Type 3 Pin Wafer
Rated Voltage (VDC) 12V DC
Rated Current (A) < 0.12A (127mA)
Screw Specification Phillips Flat Head - M3 x 15mm - Steel (Came with stock fan) Phillips Flat Head - M3 x 25mm – Steel (Not Included)


Compatible fan models


(without test, use it at your own risk)


Noctua NF-A4x10 FLX NF-A4x20 FLX    
Sunon MF40101VX-
Sanyo Denki 109P0412H901 109P0412M901 9GA0412P6F001 109P0412H601
109P0412F601 109P0412M601 9WP0412H6001  





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